Sectional boiler door



SECTIONAL BOILER noon Original Filed July 12, 192

Fig-Z" INVENTOR BY WM ATTORN EYS. I

Patented Aug. 18, 1931 UNITED STATES PATENT OFF-ICE;

WILLIAM A. JONES, OF WEST NEW BRIGHTON, YORK, ASSIGNOR TO THE 'BABCOCK & WILCOX COMPANY, OF BAYONNE, NEW JERSEY, A CORPORATION OF NEW JERSEY SECTIONAL BOILER DOOR Original application filed July 12, 1923, Serial No. 651,021. Divided and this applicationfiled .T anu ary;9,

1928. Serial No. 245,372:

This application is a division of my copending application, Serial No. 651,021, filed July 12, 1923.

This invention relates to a novel and improved arrangement of doors in boiler casings and will be best understood from the following description in connection with the annexed drawings, in which I have shown a selected embodiment of my invention and in which:

Fig. 1 is a vertical sectional view through the front of a boiler having my invention applied thereto;

Fig. 2 is a front view of a portion of the casing, as it appears from the right of Fig.

I have illustrated the invention in connection with doors usually applied to openings, through which boiler tubes may be removed or through which access may be had to the boiler for other purposes.

For the purposes of illustration, I have shown a boiler of the type having a plurality of banks of horizontally inclined tubes herein shown as the lower bank 1 and the upper bank 2, each connected to vertically disposed water chambers 3 and 4, respectively. The upper water chamber 4 is connected by the usual tubes 5 to a steam and water drum which is not shown in this application.

It often becomes necessary to gain access to the boiler, for the purpose of cleaning, repairing or renewing parts thereof and for that purpose, the front of the casing is usually made in the form of removable doors. In the form shown, I provide means whereby these doors may be removed in sections, to gain access to a part only of the boiler, without having to expose the entire boiler front.

Extending transversely of the boiler, is a lintel 6 shown as an I-beam, over whose flange engage hooks 7 secured to the upper section 8 of the door. The bottom of the section engages a sill 9 against which it is held by means of suitable clamps 10. Other clamps 10 are placed upon vertlcally extending side members 11 to secure the entire door in place. The door is thus tightly secured against supporting means on all four of its edges and the space between the door and the water chambers is tightly sealed at the top andbottom, thereby preventing vertical flow of gases between the water chambers and the casing, so that when a door is removed, gases will not escape through the opening thus provided.

Disposed on the lower part of the'section 8 are bars 12, which form supports for hooks 13 which are secured to a lower section 14. This section has its upper edge 15 in engagement with the front of the sill 9 which forms a lintel for the lower section, and its bottom edge in engagement with the sill 16, while its vertical edges are in engagement with the vertical members 11. operate to hold this section also in close contact with the frame formed by the sills and side members.

The details of the sealing means employed near the edges, are best shown in my aforesaid co-pending application.

The sections may be independently removed as by means of a hoist 17, mounted on a track 18 and having a hook 19 which may engage attaching members 20 disposed on each section.

I claim:

1. In a boiler casing, a substantially vertical door having a plurality of removable sections, a member extending from the water I chamber of the boiler and parallel thereto, said member forming a sill for one door section and a lintel for the next lower section, and means removably to attach said sections to said member, said member being conhaving horizontally inclined tubes and water chambers at either end thereof, a lintel, a sill parallel thereto, vertical side pieces extending from the sill to the lintel to form therewith the frame of an opening, a reand said member forming a sill for one sec- 3 tion and a lintel for the next lower section, whereby a sealed space is formed between the water chamber and a door section, said sections being detachably suspended respectively from said li-ntel and; from one another. i

8. In a boiler casing, a supporting framework comprising a lin-tel, a door having upper and lower sections, hooks. on said upper section engaging said lintel, supporting means on the lower part of said upper section, hooks on said lower section engaging said supporting means to hold the lower section in place, and clamps holding edges of said section in, close contact with said frame.

4. In a boiler casing, a frame comprising ahorizontal l ntel, an upper door SBCtlOH having hooks engaging said lintel and detachable therefrom by lifting the door, a sill parallel to the lintel and engaging the bottom portion of the section, a lower door section having its upper portion engaging said sill supporting means, on said upper section, hooks on said lower section engaging said means to support the lower section,

and means to secure said sections tosaid frame.

WILLIAM A, JONES. 

